[Robert Nixdorf] frequently needs to use this high-end audio recorder, but it sucks dry a set of eight AA batteries in just a few hours. Obviously a longer lasting solution was required, and he ...

There are very few things as annoying as your phone battery draining in the middle of a drive, especially when you need it to find your way around. You reach across for your power bank, only to ...

This is a follow-up to this thread: https://arstechnica.com/civis/threa...-polarity-of-this-laptop-barrel-jack.1491071/tl;dr I have a laptop but no charger, and I'm ...

Using this circuit we can convert 5V DC from the computer USB port to 12V DC and a circuit like this will find a lot of application in USB powered systems. The heart of this circuit is IC LT1618 which ...

The Zus USB 12-volt adapter not only includes two USB charging ports, it also automatically saves your parked car's location to your phone. Wayne Cunningham Managing Editor / Roadshow Wayne Cunningham ...

Do automotive electronics qualify as "mobile computing?" Presently I mount my iPhone to the left corner of my windshield and my Jabra Cruiser BlueTooth/FM speakerphone on my visor. The charging cables ...

12 volt car phone charger online, 2Pack Fast Car Charger USB C 30W Mini Cigarette Lighter Adapter Dual Port PD QC 3.0 USB C Car Phone Charger Type C Car Plug Fast Charging for iPhone online ...

We haven’t seen much of the Model Y interior, and have assumed it would mostly look like the Model 3, just a bit bigger. But we have seen that the third-row seats aren’t very large, at least in ...

SCRs are the switching devices for this unusual DC to DC converter that is suited for the ubiquitous 5V USB power source as well as numerous other applications. This novel power circuit topology uses ...